Find F'(x) using the definition of the derivative.
F(x)=7x+12. I keep getting two different answers. One is 0, the other is 7. Can anyone which one is correct?
2007-07-02 16:56:14 · 9 answers · asked by ilpulseli 1 in Science & Mathematics ➔ Mathematics
7
2007-07-02 16:59:23 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The derivative is 7.
The 12 falls out and the 7x^1 becomes 7x^0 which also 7.
2007-07-03 00:00:38 · answer #2 · answered by Anonymous · 0⤊ 0⤋
its 7
2007-07-03 00:03:51 · answer #3 · answered by jboy 2 · 0⤊ 0⤋
7 is correct. How are you getting 0?
2007-07-02 23:58:55 · answer #4 · answered by UCB 2 · 0⤊ 0⤋
7 correct
2007-07-03 01:39:00 · answer #5 · answered by Theta40 7 · 0⤊ 0⤋
When you take the derivitive of a function with two terms, F'(x) = f'(first term)+f'(second term). In this case you should get 7. If you do the "x+delta x" thing, the 12 will drop out of the calculation.
2007-07-03 00:05:03 · answer #6 · answered by cattbarf 7 · 0⤊ 0⤋
lim h->0 ((7(x+h)+12)-(7x+12))/h
=lim h->0 (7x+7h + 12 - 7x - 12)/h
=lim h->0 7h/h
=7
yay for right perfect numbers! :-)
2007-07-03 00:02:26 · answer #7 · answered by Anonymous · 0⤊ 0⤋
7 :)
2007-07-03 00:14:47 · answer #8 · answered by Anonymous · 0⤊ 0⤋
7 the power rule confirms it.
2007-07-03 00:03:48 · answer #9 · answered by Eric T 2 · 0⤊ 0⤋